121 lines
2.5 KiB
PHP
121 lines
2.5 KiB
PHP
<?php
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require_once(__DIR__.'/util.php');
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/**
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* Syncronizes the data directory with the database, this may take
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* some time.
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*/
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class Sync extends Vn\Lib\Method {
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private $trashSubdir;
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private $util;
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function __construct($app) {
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parent::__construct($app);
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$this->util = new Util($app);
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$this->dataDir = $this->util->dataDir;
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}
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function run($db) {
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$db = $this->getSysConn();
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set_time_limit(0);
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$this->trashSubdir = date('YmdHis');
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$checkCount = 0;
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$query = 'SELECT DISTINCT `%3$s` FROM `%1$s`.`%2$s`
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WHERE `%3$s` IS NOT NULL AND `%3$s` != \'\'';
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$dir = opendir($this->dataDir);
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if ($dir)
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while ($schema = readdir($dir))
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if (!in_array($schema, ['.', '..'])) {
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$info = $this->util->loadInfo($schema);
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$schemaPath = "{$this->dataDir}/$schema";
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// Deletes unreferenced schemas.
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if (!isset($info)) {
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$this->moveTrash($schema);
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continue;
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}
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// Deletes unreferenced sizes.
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$schemaDir = opendir($schemaPath);
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if ($schemaDir)
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while ($size = readdir($schemaDir))
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if (!in_array($size, ['.', '..', 'full'])
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&& !isset($info['sizes'][$size]))
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$this->moveTrash("$schema/$size");
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// Gets a list of referenced images from the database.
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$result = $db->query(sprintf($query
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,$info['schema']
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,$info['table']
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,$info['column']
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));
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if (!$result)
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continue;
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$map = [];
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while ($row = $result->fetch_row()) {
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$map[$row[0]] = TRUE;
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$checkCount++;
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}
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$result->free();
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// Deletes unreferenced images.
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$this->cleanImages($schema, 'full', $map);
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foreach ($info['sizes'] as $size => $i)
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$this->cleanImages($schema, $size, $map);
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}
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echo "Syncronization finished.\n";
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}
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function cleanImages($schema, $size, &$map) {
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$sizePath = "{$this->dataDir}/$schema/$size";
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if (!is_dir($sizePath))
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return;
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$iter = new DirectoryIterator($sizePath);
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for (; $iter->valid(); $iter->next())
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if (!$iter->isDir() && strripos($iter->getFilename(), '.png', -4) !== FALSE) {
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$name = substr($iter->getFilename(), 0, -4);
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if (!isset($map[$name]))
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$this->moveTrash("$schema/$size/". $iter->getFilename());
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}
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}
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/**
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* Moves a data directory to the trash.
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*
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* @param string $file The file to move to the trash
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*/
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function moveTrash($file) {
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$trashBasedir = "{$this->dataDir}/.trash/". $this->trashSubdir;
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$trashdir = "$trashBasedir/". dirname($file);
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if (!is_dir($trashdir))
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mkdir($trashdir, 0775, TRUE);
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rename(
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"{$this->dataDir}/$file",
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"$trashBasedir/$file"
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);
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}
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}
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